Island Lake Township (Mahnomen County) is a township in Mahnomen County, Minnesota, home to about 358 people across 34 square miles. Its ZIP code is 56651.
Homes sold for a median of $252 per square foot in the three months ending August 2026, a seller’s market.
Population35810 per sq mi
Median home value$228,300Census, as estimated by owners
Price per sq ft$252Sold homes, 3 months to August 2026
Sold over asking0%Latest 3 months
ZIP codes in Island Lake Township (Mahnomen County)
Mostly Island Lake Township (Mahnomen County); also Columbia and Clover Township (Mahnomen County)
Each card is that ZIP code’s whole market, including any part outside Island Lake Township (Mahnomen County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Island Lake Township (Mahnomen County) guide is on the way
We’re writing up Island Lake Township (Mahnomen County)’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around Island Lake Township (Mahnomen County)
Distances
Nearest major airport
Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)215 miles away
Closer regional airport
Thief River Falls Regional Airport (TVF)46 miles away
Nearest city of 250,000+
Minneapolis, MN209 miles away
Nearest city of 1 million+
Chicago, IL553 miles away
Straight-line distances from the center of Island Lake Township (Mahnomen County); driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Island Lake Township (Mahnomen County)
U.S. Representative · Minnesota’s 8th DistrictPete Stauber (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
Island Lake Township (Mahnomen County) had 300 residents in the 2020 census, up 38% since 2000.
It’s the 1334th largest of 2,727 towns in Minnesota by population.
Mahnomen County grew from 3,249 residents in 1910 to 5,411 in 2020.
Mahnomen County, 1910–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 78°F in summer, and winter lows average -5°F. About 26.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Fosston 1 E, MN weather station (5 miles away).
Jobs in Mahnomen County
1,458 jobs at 98 businesses in Mahnomen County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
Nearest hospitals
Essentia Health FosstonCritical access hospital · emergency room · Fosston6.2 miles
Sanford Bagley Medical CenterCritical access hospital · emergency room · Bagley10.9 miles
Sanford Bemidji Medical CenterGeneral hospital · emergency room · CMS rating 4 of 5 · Bemidji34.3 miles
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Places in and around Island Lake Township (Mahnomen County)
Parks (1 nearby)
Spring Lake Park · 2 acres0.2 mi
Grocery stores
Hugo's Family Marketplace7.0 mi
Libraries
Fosston Public Library6.7 mi
Counts are within about 4 miles of the center of town.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.